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Question:

Selection of Circuit Breakers in Low Voltage Circuits

Selection of Circuit Breakers in Low Voltage Circuits

Answer:

As the temperature increases, the thermal circuit breaker trips faster and often trips at lower current levels.
that is, after the trip can be reset. They can also be used as power-on / off switches for protected equipment.
Compared with the fuse, the thermal protector has a significant advantage
The thermal circuit breaker uses a bimetallic plate in series with the circuit. The heat generated by the current during the overload causes the bimetal to deform, causing the circuit breaker to trip

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